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ALGLIB is an open source / commercial numerical analysis library with C++ version; Armadillo is a C++ linear algebra library (matrix and vector maths), aiming towards a good balance between speed and ease of use. [1] It employs template classes, and has optional links to BLAS and LAPACK. The syntax is similar to MATLAB.
In computer science, an operator-precedence parser is a bottom-up parser that interprets an operator-precedence grammar.For example, most calculators use operator-precedence parsers to convert from the human-readable infix notation relying on order of operations to a format that is optimized for evaluation such as Reverse Polish notation (RPN).
In computer science, the double dabble algorithm is used to convert binary numbers into binary-coded decimal (BCD) notation. [1] [2] It is also known as the shift-and-add-3 algorithm, and can be implemented using a small number of gates in computer hardware, but at the expense of high latency. [3]
In the following, "Kaprekar's constant k" refers to a number that become positive fixed point k as result of the Kaprekar's routine.. In 1981, G. D. Prichett, et al. showed that the Kaprekar's constants are limited to two numbers, 495 (3 digits) and 6174 (4 digits). [6]
The curiously recurring template pattern (CRTP) is an idiom, originally in C++, in which a class X derives from a class template instantiation using X itself as a template argument. [1] More generally it is known as F-bound polymorphism , and it is a form of F -bounded quantification .
The pseudopolynomial time number partitioning takes O(n(k − 1)m k − 1) memory, where m is the largest number in the input. It is practical only when k=2, or when k=3 and the inputs are small integers. [15] The Complete Greedy Algorithm (CGA) considers all partitions by constructing a k-ary tree. Each level in the tree corresponds to an ...
() (having 1 orbit of size 3 and 1 orbit of size 1). These numbers can be calculated by considering the orbits as conjugacy classes . Alfréd Rényi observed that the unsigned Stirling number of the first kind [ n k ] {\displaystyle \left[{n \atop k}\right]} also counts the number of permutations of size n {\displaystyle n} with k ...
It is commonly attributed to Magnus Hestenes and Eduard Stiefel, [1] [2] who programmed it on the Z4, [3] and extensively researched it. [4] [5] The biconjugate gradient method provides a generalization to non-symmetric matrices. Various nonlinear conjugate gradient methods seek minima of nonlinear optimization problems.